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(No Model.)

W. P. TRACY. MOP WRINGERV No. 406,550.. Patented July 9, 1889.

' UNITED STATES PATENT OFFICE.

WILLIAMJP. TRACY, OF GRAND RAPIDS, MICHIGAN, ASSIGNOR OF TVVO THIRDS TO GEORGE N. DAVIS AND ARTHUR MEIGS, OF SAME PLACE.

MO'P-WRINGER.

SPECIFICATION forming part of Letters Patent No. 406,550, dated July 9, 1889.

Application filed September 3, 1888. Serial No. 284,412. (No modeL) .To all whom it may concern:

Be it known that 1, WILLIAM P. TRACY, of

Grand Rapids, in the county of Kent and ends of the short arms.

State of Michigan, have invented a new and useful Improvement in Mop-Wringers; and I do hereby declare that the following is afull, clear, and exact description of the same.

My invention is an improved mop-wringer of that class in which a pair of operating-levers approximately L-shaped are journaled on a base, with pressure-rollers on their upper ends and a treadlefor operating the levers.

The object of my invention is to simplify the construction, and thereby cheapen the apparatus, and to render it more efficient and durable in its operation.

In the accompanying drawing the figure shows a perspective view of the apparatus.

In the drawing, A A represent a base, which may be made of any suitable material. It is shown as a frame with lugs at the four corners, on which are pivoted the levers B. The arms of these levers are set at an acute angle, so that when the long arms which carry the rollers are in a vertical position, as shown, the short arms are raised at their inner ends ready to be operated. The arms of each set of levers are connected by braces a, the upper ends of the levers carrying arms b, and in these,between the arms of each pair of levers, is pivoted a pressure-roller D. To one pair of arms of the lever is connected a treadle E. This combination is made by means of a treadle-lever, which is in a form of a bow, the ends of which are connected directly to the This is shown at F. The treadle is attached directly to the center of the bow. This is a convenient form; but the construction may of course be varied,the essential feature being that the treadle-lever is formed as an extension of the arms of one pair of the levers B. The other pair of arms of the other levers are connected to the first pair of levers by means of the forks f, secured suitably to the arms, extending up Wardly therefrom and embracing the arms of the first-mentioned levers, the connection being completed by means of pins which pass through the forks. In this way all the arms are connected together by means of two forks f, and all four of the shorter arms may be lifted by a single spring G. This is a coiled spring set in a suitable shell attached to the base, the shell being slotted on its upper end to receive the arm and allow it to bear upon the spring. By the action of this spring the short arms are kept raised, and in order to limit their upward movement, so that all the parts will be held in proper position, stop projections 5 are provided on the short arms, against which the forked arms hear. The springs may be duplicated, if desired. The levers B have only pivot-a1 movement in their bearings, and the forked connection between the levers is in the nature of a sliding joint, allowing the proper movement without binding. On each of the arms I) b of one pair of levers is a spring-arm II, which projects horizontally beyond the bearing-face of the roller, so as to close the space between the rollers as they are brought near each other and to inclose the angle at the ends which are subjected to pressure.

I claim as my invention- 1. In combination,the four L-shaped levers supported to have pivotal movement, one of said pair being extended by a treadle-arm secured directly thereto, and a direct sliding connection between the second pair of arms or levers and the first pair, substantially as described, whereby when the trea'dle-arm is depressed the first pair of levers will be rocked, whichwill cause the operation of the second pair through the sliding connection.

2. In combination, the four L-shaped levers pivotally supported, a direct sliding connection between the pairs, consisting of the forks f on the lower arms of one pair embracing the lower arms of the other pair and the pins passing through the forks, and an operatinglever, substantially as described.

3. In combination, the two pairs of L-shaped levers, one set having forks embracing the other set, and stop projections against which the forks bear, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two sub scribing witnesses.

WILLIAM P. TRACY.

Witnesses:

O. M. WISE, W. F. WARNER. 

